TY - JOUR
T1 - On the Assessment of Sampling Rate Impacts on Responses of Digital Protective Relays
AU - Saleh, Saleh A.
AU - Ozkop, Emre
AU - Al-Durra, Ahmed
AU - Hill, Theodore
AU - Meng, Julian
AU - Valdes, Marcelo E.
N1 - Publisher Copyright:
© 1972-2012 IEEE.
PY - 2023/9/1
Y1 - 2023/9/1
N2 - Power systems (including industrial and commercial power systems) widely utilize digital protective relays for component and system protection. These protective devices have shown numerous operational advantages over conventional electromagnetic protective devices. Such operational advantages include the accuracy, reliability, response speed, interoperability, weight, and size. Performance and operational advantages of digital protective relays are typically dependent on the resolution of their input data, as well as their algorithms for fault detection and identification. This article assesses the performance of time-based, frequency-based, and time-frequency-based digital protective relays, when operated at different sampling rates. Tested sampling rates include low, medium, and high sampling rates that range from 16 to 288 samples per cycle. In this article, the three digital protective relays are tested when deployed as the digital 87 T transformer digital protection. Performance of the time-based, frequency-based, and time-frequency-based digital protective relays is assessed in terms of their accuracy and response speed. Test results show that low sampling rates can deteriorate the accuracy and response speed of the three tested digital protective relays. Obtained performance results also reveal that medium and high sampling rates can effectively improve the accuracy and response speed of the time-based, frequency-based, and time-frequency-based digital protective relays.
AB - Power systems (including industrial and commercial power systems) widely utilize digital protective relays for component and system protection. These protective devices have shown numerous operational advantages over conventional electromagnetic protective devices. Such operational advantages include the accuracy, reliability, response speed, interoperability, weight, and size. Performance and operational advantages of digital protective relays are typically dependent on the resolution of their input data, as well as their algorithms for fault detection and identification. This article assesses the performance of time-based, frequency-based, and time-frequency-based digital protective relays, when operated at different sampling rates. Tested sampling rates include low, medium, and high sampling rates that range from 16 to 288 samples per cycle. In this article, the three digital protective relays are tested when deployed as the digital 87 T transformer digital protection. Performance of the time-based, frequency-based, and time-frequency-based digital protective relays is assessed in terms of their accuracy and response speed. Test results show that low sampling rates can deteriorate the accuracy and response speed of the three tested digital protective relays. Obtained performance results also reveal that medium and high sampling rates can effectively improve the accuracy and response speed of the time-based, frequency-based, and time-frequency-based digital protective relays.
KW - 87 T transformer digital differential protection
KW - and real-time implementation
KW - data sampling
KW - digital protective relays
KW - IEC 61850 Sampled Values
KW - process bus
KW - sampling rates
UR - http://www.scopus.com/inward/record.url?scp=85162917061&partnerID=8YFLogxK
U2 - 10.1109/TIA.2023.3287477
DO - 10.1109/TIA.2023.3287477
M3 - Article
AN - SCOPUS:85162917061
SN - 0093-9994
VL - 59
SP - 5420
EP - 5431
JO - IEEE Transactions on Industry Applications
JF - IEEE Transactions on Industry Applications
IS - 5
ER -